Lack of sleep does not cause the body temperature to rise, the normal body temperature fluctuates throughout the day, and the normal body temperature is between 36.0-37.0℃, which is usually slightly lower in the morning and higher in the afternoon than in the morning. Body temperature does not usually fluctuate due to changes in the external environment, but it is not constant throughout the day, but the difference in temperature fluctuation is very small. The body temperature will not rise after sleep deprivation, but if it does, it is important to pay special attention to whether there are other problems, such as colds or inflammation in other parts of the body, and to go to the hospital for further consultation to find out the cause of the rise in body temperature.